[SOLVED]
I solved the problem. I used the extension "Add spreadsheet layer" to import join tables for my layers. BUT those imported fields had no "Lengh" and "Precission" defined (screenshot). 
I solved the problem by creating new fields and pasting the values using the field calculator. Thank you guys for your inputs!
[SOLVED]
I solved the problem. I used the extension "Add spreadsheet layer" to import join tables for my layers. BUT those imported fields had no "Lengh" and "Precission" defined (screenshot).
I solved the problem by creating new fields and pasting the values using the field calculator. Thank you guys for your inputs!
I used the extension "Add spreadsheet layer" to import join tables for my layers. BUT those imported fields had no "Lengh" and "Precission" defined (screenshot).
I solved the problem by creating new fields and pasting the values using the field calculator.
[Update][SOLVED]
I figgured out thatsolved the problem has. I used the extension "Add spreadsheet layer" to be inimport join tables for my point shapelayers. I tried the algorithm with sample point data which worked perfectly fineBUT those imported fields had no "Lengh" and "Precission" defined (screenshot). So the main problem is, that the algorithm does not find any attributes in the area of the polygons.
I thought thatsolved the problem has to be the projection of the point shape. But it hasby creating new fields and pasting the same projection asvalues using the polygon layer..field calculator. 
Any ideas?Thank you guys for your inputs!
[Update]
I figgured out that the problem has to be in my point shape. I tried the algorithm with sample point data which worked perfectly fine. So the main problem is, that the algorithm does not find any attributes in the area of the polygons. I thought that the problem has to be the projection of the point shape. But it has the same projection as the polygon layer... Any ideas?
[SOLVED]
I solved the problem. I used the extension "Add spreadsheet layer" to import join tables for my layers. BUT those imported fields had no "Lengh" and "Precission" defined (screenshot).
I solved the problem by creating new fields and pasting the values using the field calculator. Thank you guys for your inputs!
[Update]
I figgured out that the problem has to be in my point shape. I tried the algorithm with sample point data which worked perfectly fine. So the main problem is, that the algorithm does not find any attributes in the area of the polygons. I thought that the problem has to be the projection of the point shape. But it has the same projection as the polygon layer... Any ideas?
